20121001100011 has 8 divisors (see below), whose sum is σ = 23149761573600. Its totient is φ = 17130823562688.

The previous prime is 20121001099999. The next prime is 20121001100021. The reversal of 20121001100011 is 11000110012102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20121001100011 - 2⁷ = 20121001099883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121001100021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9645732946 + ... + 9645735031.

It is an arithmetic number, because the mean of its divisors is an integer number (2893720196700).

Almost surely, 2^{20121001100011} is an apocalyptic number.

20121001100011 is a deficient number, since it is larger than the sum of its proper divisors (3028760473589).

20121001100011 is a wasteful number, since it uses less digits than its factorization.

20121001100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19291468133.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20121001100011 its reverse (11000110012102), we get a palindrome (31121111112113).

The spelling of 20121001100011 in words is "twenty trillion, one hundred twenty-one billion, one million, one hundred thousand, eleven".